微信小程序：制作星星评价代码分享

不管是商城、O2O等类型的小程序都需要用到评价，而星星评价是最常用的类型，君君营销今天分享平时在项目制作中如何实现星星评价。

上图是评价后的结果，主要分为三项评价，平均得出综合评价，那么就需要用户选择三项星星评价,如下图
实现的要点是如何通过点击星星自动实现评价效果，如点击第三颗星星就自动变成3星。
WXML代码如下

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textarea><br />view><br /><view class="btn"><br /><button form-type="submit">确定提交button><br />view><br />form><br />view><br />view><br />WXSS代码如下：<br />.container {<br />background: #f0f0f0;<br />}<br />.comment_box{<br />width:100%;<br />}<br />.comment_item{<br />width:100%;<br />padding:0 20rpx;<br />height:100rpx;<br />line-height:100rpx;<br />display:flex;<br />flex-direction:row;<br />justify-content:space-between;<br />box-sizing:border-box;<br />border-bottom:1px dotted #eee;<br />background-color:#fff;<br />}<br />.comment_item_t{<br />font-size:32rpx;<br />height:100rpx;<br />line-height:100rpx;<br />color: #333333;<br />}<br />.comment_item_star{<br />display:flex;<br />flex-direction:row;<br />}<br />.comment_item_star .star{<br />z-index: 1;<br />width:80rpx;<br />height:100rpx;<br />background-image: url("亮色星星图片");<br />background-size:20px 19px;<br />background-position:center center;<br />background-repeat:no-repeat;<br />}<br />.comment_item_star .star_gray{<br />background-image: url("灰色星星图片");<br />}<br />.comment_text textarea{<br />width:100%;<br />height:256rpx;<br />font-size:32rpx;<br />line-height:64rpx;<br />color: #333333;<br />background: #fff;<br />padding:20rpx;<br />box-sizing:border-box;<br />}<br />.btn button{<br />width: 670rpx;<br />height: 90rpx;<br />line-height:90rpx;<br />background: #ffda44;<br />border-radius: 45rpx;<br />font-size: 32rpx;<br />margin: 40rpx 40rpx 60rpx 40rpx;<br />color: #333;<br />}<br />JS代码如下<br />var util = require('../../utils/util.js')<br />var app = getApp()//获取应用实例<br />Page({<br />data: {<br />star_1: 0,<br />star_2: 0,<br />star_3: 0,<br />order_id:0<br />},<br />onLoad:function(e) {<br />var that = this<br />var order_id = e.order_id<br />that.setData({<br />order_id:order_id<br />})<br />},<br />change_star:function(e) {<br />var that = this<br />var star_item = e.currentTarget.dataset.item<br />var star = e.currentTarget.dataset.star<br />if (star_item == 'star_1') {<br />that.setData({<br />star_1: star<br />});<br />}else if(star_item == 'star_2') {<br />that.setData({<br />star_2: star<br />});<br />} else if (star_item == 'star_3') {<br />that.setData({<br />star_3: star<br />});<br />}<br />},<br />add_comment:function(e) {<br />var that = this<br />var star_1 = that.data.star_1<br />var star_2 = that.data.star_2<br />var star_3 = that.data.star_3<br />var detail = e.detail.value.detail<br />if(star_1 == 0) {<br />util.showNotice("请针对服务态度打分!")<br />} else if (star_2 == 0) {<br />util.showNotice("请针对服务质量打分!")<br />} else if (star_3 == 0) {<br />util.showNotice("请针对服务效率打分!")<br />} else if (detail == "") {<br />util.showNotice("请填写评价内容!")<br />} else {<br />var order_id = that.data.order_id<br />var session3rd = wx.getStorageSync('session3rd')<br />var post_data = {<br />"session3rd": session3rd,<br />"order_id": order_id,<br />"star_1": star_1,<br />"star_2": star_2,<br />"star_3": star_3,<br />"detail": detail,<br />"ctype": 1<br />}<br />var url_comment = util.getApiUrl(app, "/Comment/add", "")<br />util._post_from(url_comment, post_data, function (res) {<br />console.log('评价侠客返回')<br />console.log(res)<br />if (res.data.code = '200') {<br />wx.showModal({<br />content: '提交评论成功',<br />showCancel:false,<br />success:function(val) {<br />app.globalData.is_need_update_post_info = true<br />wx.navigateBack()<br />}<br />})<br />} else {<br />util.showNotice(res.data.msg)<br />}<br />})<br />}<br />}<br />})<br /><br />以上基本就实现了星星评价效果。</div>
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